Betty stirred and moaned at the sudden loss of contact between her yearning pussy and his wonderfully licking tongue.

"She really wants it bad!" Randolph noted for future reference. As if to echo his own thoughts, he spoke the words out loud and kneeled up toward the dark-haired woman's widespread buttocks and thighs. He looked down at the shapely mounds of silken flesh and bent to ease her ass-cheeks still farther apart. Beneath the dull pink of Betty's anal opening lay the pulsing aperture of her almost hidden vagina. He felt himself drooling over the mouth-watering sight of the young woman's nakedness and wondered about the fact that she wore no stockings at all. Only a pair of low-heeled pumps and the panties. In his time, all women wore stockings unless they were at home, and even then they were apt to be more than fully clothed unless getting ready to bathe or bed. It was clear that he had a lot to learn as he went about his research. With a pained expression, the middle-aged scientist pushed his heavily bloated cock forward and began to worm the smooth, rubbery head of it in between the dark pubic curls and up, up into the wetly heated cuntal flesh that was now spread wide before him. It was all perfectly clear in every detail in the bright laboratory lights, and Dr. Adam Randolph felt that nothing had ever been so important to him as this moment.

"OOoooaaahh!" Betty responded to the hotly throbbing penis that slowly slid up inside her helplessly aroused female flesh. Her pleading whimpers filled the laboratory as Randolph thrust the lust-thickened head of his cock up into the palpitating entrance of Betty's willing pussy, pushing upward, continuing in a slow, constant act of relentless penetration until his long hard penis was completely buried to the hilt within the soft warmth of the trembling grad student's belly.